共查询到20条相似文献,搜索用时 78 毫秒
1.
2.
《安全与电磁兼容》2014,(2)
正2014年3月29日,欧洲委员会(EC)出版了8项重修的CE标志指令,这些指令开始使用新的参考码,并与768/2008/EU决议中有关CE标志的规则和职责相一致。其中,新的EMC指令由以前的2004/108/EC改为2014/30/EU,低电压指令(LVD)由以前的2006/95/EC改为2014/35/EU,防爆(ATEX)指令由94/9/EC改为2014/34/EU。新指令于2014年4月19日生效,欧盟成员国必须在2016年4月20日前修改相应的国家法规,并替换旧版指令。生产商的CE符合性声明(DoC)可在新指令生效后开始参考新的指令编码,至2016年4月20日,属于这些指令范围内的产品必须使用新的编码。指令的重修符合2008年实施的欧盟新立法架构(NLF),NLF具有以下特点: 相似文献
3.
4.
本文介绍了欧洲标准对玩具安全性的一些要求,并结合实验室中相关的检测手段,评估了玩具的电气安全性,剖析了常见的问题并提出了相应的解决方法。 相似文献
5.
MIC2776是MICREL公司推出的一款低电压电源监测器,可用来监测μC或μP电源电压(或电池电压)。该器件在上电时,若电源电压正常,可输出上电复位信号。而在电源电压低于高定的阈值电压时,可输出低电压复位信号。另外,MIC2776还具有手动复位功能。文中介绍了MIC2776的管脚功能、内部结构及工作原理,并给出了典型应用电路图。 相似文献
6.
欧盟ROHS和WEEE指令最新进展 总被引:4,自引:0,他引:4
吴建丽 《信息技术与标准化》2005,(3):43-47
简要回顾了欧盟ROHS和WEEE指令的主要内容,介绍了指令后续法规制定、转化、修订、有害物质检测方法研制等方面的最新进展情况。 相似文献
7.
欧盟RoHS指令将于7月1日正式生效,6月13日上午,世界知名认证机构美国安全检测实验室公司(HL)在广州启动绿色标志:UL RoHS产品认证标志和UL危害物质管理体系认证标志, 相似文献
8.
CE是法语“CONFORMITE EUROPEENE”(欧洲合格证)的简称,是一种安全认证的标志。文中论述了“CE”标志和《技术协调与标准化新方法》指令之间的关系,给出了企业获得“CE”标志的具体步骤。 相似文献
9.
10.
11.
安全性测试是雷达软件测试的重点和难点,针对当前雷达安全性测试所面临的主要问题,从软件安全性测试的需求分析、测试设计和测试环境搭建三个方面进行详细论述,给出了一种以失效模式影响分析表和安全性故障树分析为基础的雷达软件安全性测试设计实用方法,该方法经实际验证方便可执行。 相似文献
12.
13.
依据GB4943—2001《信息技术设备的安全》中对电池的要求,选取了较为典型的可充电式锂离子电池进行详细介绍,分析了具体的锂离子电池充放电控制电路的安全测试方法,为锂离子电池的测试提供了参考。 相似文献
14.
在全业务背景下,随着通信技术和通信领域迅速发展,数据业务也在快速发展,大量的软交换设备和数据设备在现网中应用,导致通信设备的集成度越来越高,单机架耗电量大幅上升,通信集中化给局房动力的可靠性、动力容量等带来严重挑战。本课题研究主要包含四部分内容,一是分析目前移动通信局房高低压配电系统存在的问题,二是通过分析研究解决目前动力电源设计存在的问题,提出了新的高低压配电系统模块化配置标准,三是对各种类型的高低压配电系统进行分析,四是根据实例,对新标准下的系统和常规系统的各项性能指标进行比较。 相似文献
15.
本文介绍了5406、5407、TC4423、TC4424、TC4425等驱动集成电路的电性能参数,说明了对这类能输出高电压或大电流集成电路的测试原理,给出了以小型微型计算机测试系统为主,加以其它辅助方法进行这类电路包括高电压和大电流的全参数测试的方案. 相似文献
16.
This work proposes the use of a simple 1-bit digitizer as an analog block observer, in order to enable the implementation of on-line test strategies for RF analog circuits in the System-on-Chip environment. The main advantages of using a simple digitizer for RF circuits are related to the increased observability of the RF signal path and minimum RF signal degradation, as neither reconfiguration of the signal path nor variable load for the analog RF circuit are introduced. As an additional advantage, the same digitizer can be used to implement BIST strategies, if required. The feasibility of using a 1-bit digitizer for the test of analog signals has already been presented in the literature for low frequency linear analog systems. This paper discusses the implementation of an on-line test strategy for analog RF circuits in the SoC environment, and presents new results for on-line RF testing. Moreover, we also provide detailed analysis regarding the overhead of the test strategy implementation. Experimental results illustrate the feasibility of the proposed technique.Marcelo Negreiros was born in Porto Alegre, Brazil, in 1969. He received the electrical engineering degree in 1992 and the M.S. degree in 1994, both from Universidade Federal do Rio Grande do Sul (UFRGS), Brazil. Since then he was been working as an associate researcher in the Signal Processing Lab. (LaPSI) of the Electrical Engineering Department at UFRGS. Since 2000 he also works toward a Ph.D. in Computer Science from UFRGS. His main research interests include mixed-signal and analog testing and digital signal processing.Luigi Carro was born in Porto Alegre, Brazil, in 1962. He received the Electrical Engineering and the MSc. degrees from Universidade Federal do Rio Grande do Sul (UFRGS), Brazil, in 1985 and 1989, respectively. From 1989 to 1991 he worked at ST-Microelectronics, Agrate, Italy, in the R&D group. In 1996 he received the Ph.D. degree in the area of Computer Science from Universidade Federal do Rio Grande do Sul (UFRGS), Brazil. He is presently a lecturer at the Electrical Engineering Department of UFRGS, in charge of Digital Systems Design and Digital Signal processing disciplines at the graduate and undergraduate level. He is also a member of the Graduation Program in Computer Science of UFRGS, where he is responsible for courses in Embedded Systems, Digital Signal Processing, and VLSI Design. His primary research interests include mixed-signal design, digital signal processing, mixed-signal and analog testing, and fast system prototyping. He has published more than 90 technical papers in those topics and is the author of the book Digital Systems Design and Prototyping (in portuguese).Altamiro A. Susin was born in Vacaria-RS, Brazil, in 1945. He received the Electrical Engineering and the MSc. degrees from Universidade Federal do Rio Grande do Sul (UFRGS), Brazil, in 1972 and 1977, respectively. Since 1968 he worked in the start up of Computer Centers of two local Universities. In 1981 he got his Dr Eng degree from Institut National Polytechnique de Grenoble-France. He is presently a lecturer at the Electrical Engineering Department of UFRGS, in charge of Digital Systems Design disciplines at the graduate and undergraduate level. He is also a member of the Graduation Program in Computer Science of UFRGS, where he is responsible for courses in VLSI Architecture and is also thesis director. His main research interests are integrated circuit architecture, embedded systems, signal processing with more than 50 technical papers published in those domains. He is/was responsible for several R&D projects either funded with public and/or industry resources. 相似文献
17.
运算放大器和电压比较器测试技术的实践应用 总被引:1,自引:0,他引:1
针对半导体集成电路运算放大器失效模式指出了其测试方法,通过分解半导体集成电路运算 (电压)放大器、电压比较器测试电原理图,说明了该类器件的一些主要性能参数测试原理,介绍了在生产实践中测试技术应用方法和注意事项,提出了生产单位怎样建立完整的运算放大器IC测试系统的构想. 相似文献
18.
以抗电强度、接地电阻测试用安规测试仪器为例,介绍了工厂用于生产线上的检测仪器运行检查的要求和检测方法,并比较了各种常用运行检查要求和方法的优缺点,对工厂根据自己使用的仪器设备和生产要求来选择合适的运行检查方法有一定的参考作用和指导意义。 相似文献
19.
介绍了大规模集成电器高低温测试系统的建立,介绍了热流系统的主要技术指标和实用性。重点探讨了集成电路高低温测试系统,实际应用的关键技术及几个应该注意的技术细节。 相似文献
20.